I had a chat with an AT&T rep online, and upon asking him if any of their 3 personal plans (BlackBerry® Personal, BlackBerry® Personal Bundle, and BlackBerry® Personal with tethering) supported the use of a BlackBerry Enterprise Server, he told me that all 3 of them should. However, I keep seeing everywhere that you have to have a data plan provisioned for BES... what exactly is the difference?

I had a chat with an AT&T rep online, and upon asking him if any of their 3 personal plans (BlackBerry® Personal, BlackBerry® Personal Bundle, and BlackBerry® Personal with tethering) supported the use of a BlackBerry Enterprise Server, he told me that all 3 of them should. However, I keep seeing everywhere that you have to have a data plan provisioned for BES... what exactly is the difference?